The adidas Yeezy Boost 350 V2 Ash Blue carries a re-engineered Primeknit upper constructed from a blend of slate blue, grey and black fibers. A pale yellow hue distinguishes the post-dyed monofilament side stripe woven into the sneakers lateral side panel, delivering added breathability and an unexpected pop of color. The sock-like upper rides on a full-length Boost midsole, wrapped up in a semi-translucent rubber cage for improved stability and durability.